Home / 12,979.48-19,457.52-4,657.53

Finding the Fourth Proportional to 12,979.48, 19,457.52 and 4,657.53

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Solution

The fourth proportional to 12,979.48, 19,457.52 and 4,657.53 is: 6,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.48 : 19,457.52 = 4,657.53 : x
  2. Step 2: Convert to fraction form
    12,979.48/19,457.52 = 4,657.53/x
  3. Step 3: Cross multiply
    12,979.48x = 19,457.52 × 4,657.53
  4. Step 4: Simplify right side
    12,979.48x = 90,623,983.13
  5. Step 5: Solve for x
    x = 90,623,983.13/12,979.48
  6. Step 6: Final answer
    x = 6,982.10

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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.