Home / 7,038.50-10,561.74-3,142.64

Finding the Fourth Proportional to 7,038.50, 10,561.74 and 3,142.64

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Solution

The fourth proportional to 7,038.50, 10,561.74 and 3,142.64 is: 4,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.50 : 10,561.74 = 3,142.64 : x
  2. Step 2: Convert to fraction form
    7,038.50/10,561.74 = 3,142.64/x
  3. Step 3: Cross multiply
    7,038.50x = 10,561.74 × 3,142.64
  4. Step 4: Simplify right side
    7,038.50x = 33,191,746.59
  5. Step 5: Solve for x
    x = 33,191,746.59/7,038.50
  6. Step 6: Final answer
    x = 4,715.74

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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.