Home / 13,153.30-18,151.25-7,184.98

Finding the Fourth Proportional to 13,153.30, 18,151.25 and 7,184.98

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Solution

The fourth proportional to 13,153.30, 18,151.25 and 7,184.98 is: 9,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.30 : 18,151.25 = 7,184.98 : x
  2. Step 2: Convert to fraction form
    13,153.30/18,151.25 = 7,184.98/x
  3. Step 3: Cross multiply
    13,153.30x = 18,151.25 × 7,184.98
  4. Step 4: Simplify right side
    13,153.30x = 130,416,368.23
  5. Step 5: Solve for x
    x = 130,416,368.23/13,153.30
  6. Step 6: Final answer
    x = 9,915.11

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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.