Home / 13,730.58-20,588.48-4,368.06

Finding the Fourth Proportional to 13,730.58, 20,588.48 and 4,368.06

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Solution

The fourth proportional to 13,730.58, 20,588.48 and 4,368.06 is: 6,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.58 : 20,588.48 = 4,368.06 : x
  2. Step 2: Convert to fraction form
    13,730.58/20,588.48 = 4,368.06/x
  3. Step 3: Cross multiply
    13,730.58x = 20,588.48 × 4,368.06
  4. Step 4: Simplify right side
    13,730.58x = 89,931,715.95
  5. Step 5: Solve for x
    x = 89,931,715.95/13,730.58
  6. Step 6: Final answer
    x = 6,549.74

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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.