Home / 12,686,031-17,506,731.78-6,884,811.40

Finding the Fourth Proportional to 12,686,031, 17,506,731.78 and 6,884,811.40

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Solution

The fourth proportional to 12,686,031, 17,506,731.78 and 6,884,811.40 is: 9,501,044.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,031 : 17,506,731.78 = 6,884,811.40 : x
  2. Step 2: Convert to fraction form
    12,686,031/17,506,731.78 = 6,884,811.40/x
  3. Step 3: Cross multiply
    12,686,031x = 17,506,731.78 × 6,884,811.40
  4. Step 4: Simplify right side
    12,686,031x = 120,530,546,535,686.31
  5. Step 5: Solve for x
    x = 120,530,546,535,686.31/12,686,031
  6. Step 6: Final answer
    x = 9,501,044.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.