Home / 10,130.30-15,195.45-6,412.40

Finding the Fourth Proportional to 10,130.30, 15,195.45 and 6,412.40

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Solution

The fourth proportional to 10,130.30, 15,195.45 and 6,412.40 is: 9,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.30 : 15,195.45 = 6,412.40 : x
  2. Step 2: Convert to fraction form
    10,130.30/15,195.45 = 6,412.40/x
  3. Step 3: Cross multiply
    10,130.30x = 15,195.45 × 6,412.40
  4. Step 4: Simplify right side
    10,130.30x = 97,439,303.58
  5. Step 5: Solve for x
    x = 97,439,303.58/10,130.30
  6. Step 6: Final answer
    x = 9,618.60

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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.