Home / 7,345.61-10,136.85-4,159.53

Finding the Fourth Proportional to 7,345.61, 10,136.85 and 4,159.53

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Solution

The fourth proportional to 7,345.61, 10,136.85 and 4,159.53 is: 5,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.61 : 10,136.85 = 4,159.53 : x
  2. Step 2: Convert to fraction form
    7,345.61/10,136.85 = 4,159.53/x
  3. Step 3: Cross multiply
    7,345.61x = 10,136.85 × 4,159.53
  4. Step 4: Simplify right side
    7,345.61x = 42,164,531.68
  5. Step 5: Solve for x
    x = 42,164,531.68/7,345.61
  6. Step 6: Final answer
    x = 5,740.10

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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.