Home / 13,240.16-19,860.30-4,475.12

Finding the Fourth Proportional to 13,240.16, 19,860.30 and 4,475.12

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Solution

The fourth proportional to 13,240.16, 19,860.30 and 4,475.12 is: 6,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.16 : 19,860.30 = 4,475.12 : x
  2. Step 2: Convert to fraction form
    13,240.16/19,860.30 = 4,475.12/x
  3. Step 3: Cross multiply
    13,240.16x = 19,860.30 × 4,475.12
  4. Step 4: Simplify right side
    13,240.16x = 88,877,225.74
  5. Step 5: Solve for x
    x = 88,877,225.74/13,240.16
  6. Step 6: Final answer
    x = 6,712.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.