Home / 13,075.16-18,043.65-7,106.81

Finding the Fourth Proportional to 13,075.16, 18,043.65 and 7,106.81

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Solution

The fourth proportional to 13,075.16, 18,043.65 and 7,106.81 is: 9,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.16 : 18,043.65 = 7,106.81 : x
  2. Step 2: Convert to fraction form
    13,075.16/18,043.65 = 7,106.81/x
  3. Step 3: Cross multiply
    13,075.16x = 18,043.65 × 7,106.81
  4. Step 4: Simplify right side
    13,075.16x = 128,232,702.04
  5. Step 5: Solve for x
    x = 128,232,702.04/13,075.16
  6. Step 6: Final answer
    x = 9,807.36

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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.