Home / 10,970.28-15,138.90-6,256.08

Finding the Fourth Proportional to 10,970.28, 15,138.90 and 6,256.08

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Solution

The fourth proportional to 10,970.28, 15,138.90 and 6,256.08 is: 8,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.28 : 15,138.90 = 6,256.08 : x
  2. Step 2: Convert to fraction form
    10,970.28/15,138.90 = 6,256.08/x
  3. Step 3: Cross multiply
    10,970.28x = 15,138.90 × 6,256.08
  4. Step 4: Simplify right side
    10,970.28x = 94,710,169.51
  5. Step 5: Solve for x
    x = 94,710,169.51/10,970.28
  6. Step 6: Final answer
    x = 8,633.34

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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.