Home / 13,446.08-18,555.60-7,477.74

Finding the Fourth Proportional to 13,446.08, 18,555.60 and 7,477.74

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Solution

The fourth proportional to 13,446.08, 18,555.60 and 7,477.74 is: 10,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.08 : 18,555.60 = 7,477.74 : x
  2. Step 2: Convert to fraction form
    13,446.08/18,555.60 = 7,477.74/x
  3. Step 3: Cross multiply
    13,446.08x = 18,555.60 × 7,477.74
  4. Step 4: Simplify right side
    13,446.08x = 138,754,075.00
  5. Step 5: Solve for x
    x = 138,754,075.00/13,446.08
  6. Step 6: Final answer
    x = 10,319.30

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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.