Home / 15,300.17-21,114.03-8,585.93

Finding the Fourth Proportional to 15,300.17, 21,114.03 and 8,585.93

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Solution

The fourth proportional to 15,300.17, 21,114.03 and 8,585.93 is: 11,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.17 : 21,114.03 = 8,585.93 : x
  2. Step 2: Convert to fraction form
    15,300.17/21,114.03 = 8,585.93/x
  3. Step 3: Cross multiply
    15,300.17x = 21,114.03 × 8,585.93
  4. Step 4: Simplify right side
    15,300.17x = 181,283,478.03
  5. Step 5: Solve for x
    x = 181,283,478.03/15,300.17
  6. Step 6: Final answer
    x = 11,848.47

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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.