Home / 12,970.55-17,898.70-7,306.22

Finding the Fourth Proportional to 12,970.55, 17,898.70 and 7,306.22

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Solution

The fourth proportional to 12,970.55, 17,898.70 and 7,306.22 is: 10,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.55 : 17,898.70 = 7,306.22 : x
  2. Step 2: Convert to fraction form
    12,970.55/17,898.70 = 7,306.22/x
  3. Step 3: Cross multiply
    12,970.55x = 17,898.70 × 7,306.22
  4. Step 4: Simplify right side
    12,970.55x = 130,771,839.91
  5. Step 5: Solve for x
    x = 130,771,839.91/12,970.55
  6. Step 6: Final answer
    x = 10,082.21

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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.