Home / 18,929.04-28,386-9,061.08

Finding the Fourth Proportional to 18,929.04, 28,386 and 9,061.08

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Solution

The fourth proportional to 18,929.04, 28,386 and 9,061.08 is: 13,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.04 : 28,386 = 9,061.08 : x
  2. Step 2: Convert to fraction form
    18,929.04/28,386 = 9,061.08/x
  3. Step 3: Cross multiply
    18,929.04x = 28,386 × 9,061.08
  4. Step 4: Simplify right side
    18,929.04x = 257,207,816.88
  5. Step 5: Solve for x
    x = 257,207,816.88/18,929.04
  6. Step 6: Final answer
    x = 13,588.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.