Home / 12,430.08-17,154.08-7,715.84

Finding the Fourth Proportional to 12,430.08, 17,154.08 and 7,715.84

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Solution

The fourth proportional to 12,430.08, 17,154.08 and 7,715.84 is: 10,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.08 : 17,154.08 = 7,715.84 : x
  2. Step 2: Convert to fraction form
    12,430.08/17,154.08 = 7,715.84/x
  3. Step 3: Cross multiply
    12,430.08x = 17,154.08 × 7,715.84
  4. Step 4: Simplify right side
    12,430.08x = 132,358,136.63
  5. Step 5: Solve for x
    x = 132,358,136.63/12,430.08
  6. Step 6: Final answer
    x = 10,648.21

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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.