Home / 15,488.08-21,373.62-9,114.91

Finding the Fourth Proportional to 15,488.08, 21,373.62 and 9,114.91

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Solution

The fourth proportional to 15,488.08, 21,373.62 and 9,114.91 is: 12,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.08 : 21,373.62 = 9,114.91 : x
  2. Step 2: Convert to fraction form
    15,488.08/21,373.62 = 9,114.91/x
  3. Step 3: Cross multiply
    15,488.08x = 21,373.62 × 9,114.91
  4. Step 4: Simplify right side
    15,488.08x = 194,818,622.67
  5. Step 5: Solve for x
    x = 194,818,622.67/15,488.08
  6. Step 6: Final answer
    x = 12,578.62

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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.