Home / 10,378.08-15,557.74-7,047.44

Finding the Fourth Proportional to 10,378.08, 15,557.74 and 7,047.44

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Solution

The fourth proportional to 10,378.08, 15,557.74 and 7,047.44 is: 10,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.08 : 15,557.74 = 7,047.44 : x
  2. Step 2: Convert to fraction form
    10,378.08/15,557.74 = 7,047.44/x
  3. Step 3: Cross multiply
    10,378.08x = 15,557.74 × 7,047.44
  4. Step 4: Simplify right side
    10,378.08x = 109,642,239.19
  5. Step 5: Solve for x
    x = 109,642,239.19/10,378.08
  6. Step 6: Final answer
    x = 10,564.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.