Home / 13,368.02-18,448.31-7,702.32

Finding the Fourth Proportional to 13,368.02, 18,448.31 and 7,702.32

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Solution

The fourth proportional to 13,368.02, 18,448.31 and 7,702.32 is: 10,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.02 : 18,448.31 = 7,702.32 : x
  2. Step 2: Convert to fraction form
    13,368.02/18,448.31 = 7,702.32/x
  3. Step 3: Cross multiply
    13,368.02x = 18,448.31 × 7,702.32
  4. Step 4: Simplify right side
    13,368.02x = 142,094,748.57
  5. Step 5: Solve for x
    x = 142,094,748.57/13,368.02
  6. Step 6: Final answer
    x = 10,629.45

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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.