Home / 7,875.60-10,868.36-4,339.12

Finding the Fourth Proportional to 7,875.60, 10,868.36 and 4,339.12

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Solution

The fourth proportional to 7,875.60, 10,868.36 and 4,339.12 is: 5,988.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.60 : 10,868.36 = 4,339.12 : x
  2. Step 2: Convert to fraction form
    7,875.60/10,868.36 = 4,339.12/x
  3. Step 3: Cross multiply
    7,875.60x = 10,868.36 × 4,339.12
  4. Step 4: Simplify right side
    7,875.60x = 47,159,118.24
  5. Step 5: Solve for x
    x = 47,159,118.24/7,875.60
  6. Step 6: Final answer
    x = 5,988.00

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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.