Home / 12,320.16-18,483.36-6,475.20

Finding the Fourth Proportional to 12,320.16, 18,483.36 and 6,475.20

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Solution

The fourth proportional to 12,320.16, 18,483.36 and 6,475.20 is: 9,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.16 : 18,483.36 = 6,475.20 : x
  2. Step 2: Convert to fraction form
    12,320.16/18,483.36 = 6,475.20/x
  3. Step 3: Cross multiply
    12,320.16x = 18,483.36 × 6,475.20
  4. Step 4: Simplify right side
    12,320.16x = 119,683,452.67
  5. Step 5: Solve for x
    x = 119,683,452.67/12,320.16
  6. Step 6: Final answer
    x = 9,714.44

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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.