Home / 10,639.26-14,675.40-7,054.20

Finding the Fourth Proportional to 10,639.26, 14,675.40 and 7,054.20

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Solution

The fourth proportional to 10,639.26, 14,675.40 and 7,054.20 is: 9,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.26 : 14,675.40 = 7,054.20 : x
  2. Step 2: Convert to fraction form
    10,639.26/14,675.40 = 7,054.20/x
  3. Step 3: Cross multiply
    10,639.26x = 14,675.40 × 7,054.20
  4. Step 4: Simplify right side
    10,639.26x = 103,523,206.68
  5. Step 5: Solve for x
    x = 103,523,206.68/10,639.26
  6. Step 6: Final answer
    x = 9,730.30

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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.