Home / 13,269.95-18,312.10-7,301.60

Finding the Fourth Proportional to 13,269.95, 18,312.10 and 7,301.60

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Solution

The fourth proportional to 13,269.95, 18,312.10 and 7,301.60 is: 10,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.95 : 18,312.10 = 7,301.60 : x
  2. Step 2: Convert to fraction form
    13,269.95/18,312.10 = 7,301.60/x
  3. Step 3: Cross multiply
    13,269.95x = 18,312.10 × 7,301.60
  4. Step 4: Simplify right side
    13,269.95x = 133,707,621.63
  5. Step 5: Solve for x
    x = 133,707,621.63/13,269.95
  6. Step 6: Final answer
    x = 10,075.97

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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.