Home / 10,426.29-15,628.50-7,648.80

Finding the Fourth Proportional to 10,426.29, 15,628.50 and 7,648.80

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Solution

The fourth proportional to 10,426.29, 15,628.50 and 7,648.80 is: 11,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.29 : 15,628.50 = 7,648.80 : x
  2. Step 2: Convert to fraction form
    10,426.29/15,628.50 = 7,648.80/x
  3. Step 3: Cross multiply
    10,426.29x = 15,628.50 × 7,648.80
  4. Step 4: Simplify right side
    10,426.29x = 119,539,270.80
  5. Step 5: Solve for x
    x = 119,539,270.80/10,426.29
  6. Step 6: Final answer
    x = 11,465.18

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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.