Home / 10,500.16-14,489.76-5,784.40

Finding the Fourth Proportional to 10,500.16, 14,489.76 and 5,784.40

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Solution

The fourth proportional to 10,500.16, 14,489.76 and 5,784.40 is: 7,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.16 : 14,489.76 = 5,784.40 : x
  2. Step 2: Convert to fraction form
    10,500.16/14,489.76 = 5,784.40/x
  3. Step 3: Cross multiply
    10,500.16x = 14,489.76 × 5,784.40
  4. Step 4: Simplify right side
    10,500.16x = 83,814,567.74
  5. Step 5: Solve for x
    x = 83,814,567.74/10,500.16
  6. Step 6: Final answer
    x = 7,982.22

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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.