Home / 15,981.86-22,047.99-10,605.62

Finding the Fourth Proportional to 15,981.86, 22,047.99 and 10,605.62

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Solution

The fourth proportional to 15,981.86, 22,047.99 and 10,605.62 is: 14,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.86 : 22,047.99 = 10,605.62 : x
  2. Step 2: Convert to fraction form
    15,981.86/22,047.99 = 10,605.62/x
  3. Step 3: Cross multiply
    15,981.86x = 22,047.99 × 10,605.62
  4. Step 4: Simplify right side
    15,981.86x = 233,832,603.70
  5. Step 5: Solve for x
    x = 233,832,603.70/15,981.86
  6. Step 6: Final answer
    x = 14,631.13

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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.