Home / 10,348.40-14,280.36-5,632.40

Finding the Fourth Proportional to 10,348.40, 14,280.36 and 5,632.40

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Solution

The fourth proportional to 10,348.40, 14,280.36 and 5,632.40 is: 7,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.40 : 14,280.36 = 5,632.40 : x
  2. Step 2: Convert to fraction form
    10,348.40/14,280.36 = 5,632.40/x
  3. Step 3: Cross multiply
    10,348.40x = 14,280.36 × 5,632.40
  4. Step 4: Simplify right side
    10,348.40x = 80,432,699.66
  5. Step 5: Solve for x
    x = 80,432,699.66/10,348.40
  6. Step 6: Final answer
    x = 7,772.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.