Home / 8,490.02-12,747.53-4,749.13

Finding the Fourth Proportional to 8,490.02, 12,747.53 and 4,749.13

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Solution

The fourth proportional to 8,490.02, 12,747.53 and 4,749.13 is: 7,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.02 : 12,747.53 = 4,749.13 : x
  2. Step 2: Convert to fraction form
    8,490.02/12,747.53 = 4,749.13/x
  3. Step 3: Cross multiply
    8,490.02x = 12,747.53 × 4,749.13
  4. Step 4: Simplify right side
    8,490.02x = 60,539,678.24
  5. Step 5: Solve for x
    x = 60,539,678.24/8,490.02
  6. Step 6: Final answer
    x = 7,130.69

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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.