Home / 10,887.84-15,004.08-7,898.40

Finding the Fourth Proportional to 10,887.84, 15,004.08 and 7,898.40

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Solution

The fourth proportional to 10,887.84, 15,004.08 and 7,898.40 is: 10,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.84 : 15,004.08 = 7,898.40 : x
  2. Step 2: Convert to fraction form
    10,887.84/15,004.08 = 7,898.40/x
  3. Step 3: Cross multiply
    10,887.84x = 15,004.08 × 7,898.40
  4. Step 4: Simplify right side
    10,887.84x = 118,508,225.47
  5. Step 5: Solve for x
    x = 118,508,225.47/10,887.84
  6. Step 6: Final answer
    x = 10,884.46

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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.