Home / 15,678.54-21,637.02-8,604.84

Finding the Fourth Proportional to 15,678.54, 21,637.02 and 8,604.84

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Solution

The fourth proportional to 15,678.54, 21,637.02 and 8,604.84 is: 11,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.54 : 21,637.02 = 8,604.84 : x
  2. Step 2: Convert to fraction form
    15,678.54/21,637.02 = 8,604.84/x
  3. Step 3: Cross multiply
    15,678.54x = 21,637.02 × 8,604.84
  4. Step 4: Simplify right side
    15,678.54x = 186,183,095.18
  5. Step 5: Solve for x
    x = 186,183,095.18/15,678.54
  6. Step 6: Final answer
    x = 11,875.03

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1.5x scale

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.