Home / 10,865.12-14,993.52-6,148.40

Finding the Fourth Proportional to 10,865.12, 14,993.52 and 6,148.40

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Solution

The fourth proportional to 10,865.12, 14,993.52 and 6,148.40 is: 8,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.12 : 14,993.52 = 6,148.40 : x
  2. Step 2: Convert to fraction form
    10,865.12/14,993.52 = 6,148.40/x
  3. Step 3: Cross multiply
    10,865.12x = 14,993.52 × 6,148.40
  4. Step 4: Simplify right side
    10,865.12x = 92,186,158.37
  5. Step 5: Solve for x
    x = 92,186,158.37/10,865.12
  6. Step 6: Final answer
    x = 8,484.60

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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.